10.14489/td.2019.04.pp.050-057

2019, 04 April

DOI: 10.14489/td.2019.04.pp.050-057

Korolev A. I. A
PHOTOGRAPHIC METHOD OF DISPLACEMENT REGISTRATION IN SHOCK DIAGNOSTICS
(pp. 50-57)

Abstract. The optical method is proposed for shock diagnostics. The method consists in the photoregistration of displacement of fluorescent marks applied to the surface of the object under study at specified locations. The excitation of fluorescence is provided by illuminating the marks with the UV lamp. The modules of the displacement vector obtained from the images of the tracks provide information about the behavior of object at a shock and about its mechanical properties. The stepwise torsion of the nut on the rod under the action of multiple shocks was discovered and investigated. A shock excitation of the low-frequency resonance in the elastic sickle fixed on the rod was revealed. The horizontal displacement of the massive body over the surface of PU foam sheet was investigated. The vertical displacement of the body, fixed on the foam, during the falling of the shock table was analyzed.

Keywords: shock diagnostics, photographic method, ultraviolet radiation, fluorescence, blur image.

+ - About the Authors Click to collapse

A. I. Korolev (Russian State Scientific Center for Robotics and Technical Cybernetics (RTC), St. Peterburg, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. Biderman V. L. (1980). Theory of mechanical vibrations. Moscow: Vysshaya shkola. [in Russian language]
2. DeSilva C. W. (2005). Vibration and Shock Handbook. CRC.
3. Harris C. M., Peirsol A. G. (2001). Shock and Vibration Handbook. McGraw Hill.
4. Söhoel E. O. (1985). Method and instrument for determining the conditions of an operating bearing. US Patent No. 4528852. USA.
5. Alexander J. E. (2009). The Shock Response Spectrum – A Primer. Society for Experimental Mechanics Inc. Proceedings of the IMAC-XXVII. February 9 – 12, 2009. Orlando.
6. SPM Instrument. The SPM shock pulse method for diagnosing the operating conditions and condition of rolling bearings. Available at: http://prmeh.ru/tech/ library/vibro_spm_02/ (Accessed: 19.10.2018). [in Russian language]
7. Poshekhonov R. A., Lapshin V. V., Zaharevich E. M., Kir'yanov V. P. (2014). Impact diagnostics of aerostatic spindle assembly with spherical bearings. MGTU im. N. E. Baumana. Elektronnyy zhurnal, 07, pp. 48-71. [in Russian language]
8. Vest Ch. (1982). Holographic interferometry. Moscow: Mir. [in Russian language]
9. Comprehensive quality control system. Electronic products, quantum electronics and electrical. Test methods. Appendix 6. Methods for indicating the resonant frequencies of a structure. (2003). Ru Standard No. GOST 20.57.406–81. Moscow: Izdatel'stvo standartov. [in Russian language]
10. Melese Ph. (2004). Method and apparatus for realtime vibration imaging. Patent No. WO/2004/ 090485.
11. Pronin S. P., Zryumov E. A., Yudenkov A. V. (2010). Method of measuring vibration parameters of an object. Ru Patent No. 2395792. Russian Federation. [in Russian language]
12. Drzhevetskiy A. L., Yurkov N. K., Grigor'ev A. V. et al. (2014). Vibration measurement method. Ru Patent No. 2535522. Russian Federation. [in Russian language]
13. Korolev A. I. (2017). Photographic method for analyzing three-dimensional vibrations in vibration diagnostics. Kontrol'. Diagnostika, (7), pp. 26-32. [in Russian language] DOI: 10.14489/td.2017.07.pp.026-032
14. Korolev A. I. (2018). The method of indication of mechanical resonances from photographs of traces of fluorescent markers. Ru Patent No. 2666583. Russian Federation. [in Russian language]

+ - Purchase digital version of a single article Click to collapse

This article is available in electronic format (PDF).

The cost of a single article is 350 rubles. (including VAT 18%). After you place an order within a few days, you will receive following documents to your specified e-mail: account on payment and receipt to pay in the bank.

After depositing your payment on our bank account we send you file of the article by e-mail.

To order articles please copy the article doi:

10.14489/td.2019.04.pp.050-057

and fill out the form